Mathematics Past Questions And Answers
In April, Mrs. Ngosi bought a bag of corn for N1,200. When she bought more in June, the price had gone up by 20%. How much did she pay in June for a bag of corn?
- a. N1,300
- b. N1,400
- c. N1,440
- d. N1,340
If p = (y : 2y \(\geq\) 6) and Q = (y : y -3 \(\geq\) 4), where y is an integer, find p\(\cap\)Q
- A. {3, 4}
- B. {3, 7}
- C. {3, 4, 5, 6, 7}
- D. {4, 5, 6}
Find the median of the set: 15,15,19,21,22,24,26,27,29,31,33,36
- A. 25
- B. 24
- C. 26
- D. 27
A farmer planted 5000 grains of maize and harvested 5000 cobs, each bearing 500 grains. What is the ratio of the number of grains sowed to the number harvested?
- A. 1 : 250 000
- B. 1 : 25 000
- C. 1 : 500
- D. 1 : 5 000
The third of geometric progression (G.P) is 10 and the sixth term is 80. Find the common ratio.
- A. 2
- B. 3
- C. 4
- D. 8
If tan y is positive and sin y is negative, in which quadrant would y lie?
- A. First and third only
- B. First and second only
- C. Third only
- D. Second only
Find the mean of 10, 8, 5, 11, 12, 9, 6, 3, 15, and 23.
- A. 11.2
- B. 10
- C. 10.2
- D. 11.3
If two smaller sides of a right angled triangle are 4cm and 5cm, find its area
- A. 10 cm2
- B. 6 cm2
- C. 24 cm2
- D. 8 cm2
PQRST is a regular pentagon and PQVU is a rectangle with U and V lying on TS and SR respectively as shown in the diagram. Calculate TUP
- A. 18°
- B. 54°
- C. 90°
- D. 108°
(a) The sum of the first n terms of a sequence is given by \(S_{n} = \frac{5n^{2}}{2} + \frac{5n}{2}\). Write down the first four terms of the sequence and an expression for the nth term.
(b) The equation of a circle is given by \(x^{2} + y^{2} - 10x - 8y + 25 = 0\).
(i) Show that the circle touches the x- axis ; (ii) Find the coordinates of the point of contact.
View Discussion (0)WAEC 2008 THEORY_LI.jpg)